Sphingidae 



( Chionanthus) and the jasmine. It is a common species in the 

 southern States and Central America, but is only occasionally 

 found in the northern States. I have not infrequently taken 

 specimens in southern Indiana, and it is now and then 

 captured in Pennsylvania and even in New England. 



Genus CHL^ENOGRAMMA Smith 



This genus, which is very closely allied to the preceding, 

 may be distinguished from it by the fact that the comb of long 

 bristles of the mid tarsus, which is characteristic of Protoparce, 

 is wanting or reduced to at most one or two bristles. Pulvillus 

 and paronychium present. The eyes are smaller than in 

 Protoparce, and are not lashed. There are two species in the 

 genus, one South American, the other found in the eastern 

 portion of the United States. 



(i) Chlaenogramma jasminearum Guerin, Plate VII, 

 Fig. 6, ? . (The Ash Sphinx.) 



Syn. rotundata Rothschild. 



The larva of this hawkmoth feeds upon the various species 

 of ash (Fraxinus). It is found in the middle Atlantic States 

 and southward, and ranges as far west as the Mississippi. 



Genus DOLBA Walker 



Head small; eyes small and lashed. The antennae are 

 fusiform with a short abrupt hook at the tip. The tibiae are not 

 spinose. The mid tarsus has a comb. 



The genus, which contains but a single species, is differenti- 

 ated from all those in which the eyes are lashed by the non- 

 spinose tibiae. 



(i) Dolba hylaeus Drury, Plate VI, Fig. 4, ? . (The Papaw 

 Sphinx.) 



This small, but neatly colored hawkmoth, may readily be 

 distinguished by the figure given in our plate. Its larva, which 

 is green, marked with lateral oblique red bands, commonly feeds 

 upon the papaw, ( ' Asimina triloba), and is generally abundant 

 where that plant is common, as in the Valley of the Ohio. It 

 is also said to feed upon Prinos. It ranges from Canada to the 

 Gulf States and westward to Iowa and Missouri. 



